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ball valves, mini ball valves [2009-07-08]

we supply different kinds of ball valves, size from 1/4" to 4" they can be used for water, gas and oil. The ends of thread F/F. F/M. M/M are the normal ball valves, but we can also supply the ball valves for pex-al-pex pipes. Straighter normal ball valves and mini ball valves are all available. For the body of ball valves, we can make it from brass and zinc, and for the ball, it is usually made from brass chrome plated, but if you need cheaper, we can make it in steel chrome plated. The cheapest model is zinc body with steel ball. type of ball valves There are four general body styles of ball valves: single body, split body, top entry, and welded. There are four general types of ball valves: full port, standard port, reduced port, and v port. A full port ball valves has an over sized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. Flow is unrestricted, but the valve is larger. A standard port ball valves is usually less expensive, but has a smaller ball and a correspondingly smaller port. Flow through this valve is one pipe size smaller than the valve's pipe size resulting in slightly restricted flow. In reduced port ball valves, flow through the valve is one pipe size smaller than the valve's pipe size resulting in restricted flow. A v port ball valve has either a 'v' shaped ball or a 'v' shaped seat. This allows the orifice to be opened and closed in a more controlled manner with a closer to linear flow characteristic. When the valve is in the closed position and opening is commenced the small end of the 'v' is opened first allowing stable flow control during this stage. This type of design requires a generally more robust construction due to higher velocities of the fluids, which would quickly damage a standard valve. A ball valve has a mechanical means of anchoring the ball at the top and the bottom, this design is usually applied on larger and higher pressure valves (say, 4" and above 600 psi and above). Manually operated ball valves can be closed quickly and thus there is a danger of water hammer. Some ball valves are equipped with an that may be pneumatically or motor (electric) operated. These valves can be used either for on/off or flow control. A pneumatic flow control valve is also equipped with a positioner which transforms the control signal into actuator position and valve opening accordingly.

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brass ball valves

brass ball valves